Over the years, what constitutes a threat to copyright has made its way to the highest court in the land, and this week the Electronic Frontier Foundation filed a petitionthat would call for the court to overturn a decision which ruled Oracle could copyright parts of the Java API.

A pivoted catch designed to fall into a notch on a ratchet wheel so as to allow movement in only one direction (e.g. on a windlass or in a clock mechanism), or alternatively to move the wheel in one direction.